Sorry had to hide a micro to increase the difficulty but at least it's not a nano.
Cache is not at posted coords but within 415 meters (as the crow flies). Posted coords will lead you to where you can answer these question. Looking for a large sign post with 5 different signs.
N 49 16.ABC
A = 2nd digit of the address
B = Number of letters in the large red word
C = 10th digit of the chiro phone number minus the 6th digit
ABC sum check = 16
W 122 48.DEF
D = 1st digit of the address
E = Number of letters in the last word of the address
F = Number of the letter "A" in the top two signs (below the RBC sign)
DEF sum check = 13
Bring a pen , watch for wildlife & be nice to the enviroment